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10. More Fun Comics #52

CGC NM value: $213,000
Issue dated: February 1940

"More Fun Comics" existed between 1935 and 1947. Although the legacy of the series continued in superhero characters such as Aquaman, the most valuable comic in the series-- and what is estimated to be the 10th most expensive of all-time--is issue #52, which introduced another preeminent superhero, The Spectre.